JP6325754B2 - Touch screen control method, apparatus, program, and recording medium - Google Patents

Description

The present invention relates to an electronic field, in particular, touch screen control method, equipment, a program and a recording medium.

  An optical sensor is a common sensor and is widely applied in electronic devices such as mobile phones, tablet PCs, and notebooks.

  In general, a small hole is opened at the upper edge of the front surface of the case of the electronic device, and a photosensor is installed in the small hole. When the ambient light generated from the light source passes through a small hole and enters the optical sensor, the electronic device measures the luminance value of the ambient light using the optical sensor.

The present invention, in order to solve the problems in the related art and provides a touch screen control method, equipment, a program and a recording medium.

  According to a first aspect of an embodiment of the present invention, there is provided a touch screen control method applied to an electronic device having a touch screen in which optical sensors are uniformly distributed.

The above method
Selecting N (N is a natural number of 2 or more) sampling sensors that are not shielded by the operating body from the light sensors distributed on the touch screen;
Controlling the touch screen using the N sampling sensors.

As an option,
The step of controlling the touch screen using the N sampling sensors includes:
Calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
Adjusting the brightness value of the touch screen having a forward correlation with the brightness value of the ambient light based on the brightness value of the ambient light.

As an option,
The step of controlling the touch screen using the N sampling sensors includes:
Calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
Controlling the keyboard light to an on state when the luminance value exceeds a predetermined threshold;
And controlling the keyboard light to an off state when the luminance value is equal to or less than a predetermined threshold value.

Optionally, calculating the brightness value of the ambient light based on the measured values of the N sampling sensors,
Among the measurement values of the N sampling sensors, the largest i (i is a positive integer) measurement value and the smallest j (j is a positive integer) measurement value. A step to delete,
Calculating an average value of the remaining measurement values and setting the average value as the luminance value of the ambient light.

As an option,
Identifying the shielding position of the operating body based on the position of the optical sensor shielded by the operating body;
Controlling the touch screen based on the shielding position.

As an option,
The step of selecting N sampling sensors not shielded by the operating body is as follows:
Obtaining an operation area on which the operating body acts on the touch screen, and specifying a revocation area including the operation area;
Select N sampling sensors from the optical sensors located outside the invalidation area, or wait for selection until N sampling sensors are selected for each of the sampling sensors waiting for selection. When the sampling sensor is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. Selecting a sampling sensor waiting for selection,
Here, ambient light incident on the optical sensor in the invalidation area is shielded by the operating body.

As an option,
The step of switching the sampling sensor waiting for selection to an alternative sampling sensor located outside the invalidation area is as follows:
When the optical sensors are arrayed on the touch screen, the optical sensors that are closest to the sampling sensor waiting for selection in the row direction or the column direction and are located outside the invalidation area are arranged. Selecting to obtain the alternative sampling sensor;
Or
When selecting a sampling sensor along a predetermined direction on the first line, a second line that is parallel to the first line and does not intersect with the invalidation area is specified, and the sampling line is selected on the second line. An optical sensor corresponding to a sampling sensor waiting for selection is obtained to obtain the alternative sampling sensor, or an optical sensor located on the first line along the predetermined direction other than the invalidation area. Selecting to obtain the alternative sampling sensor.

  According to a second aspect of the present invention, there is provided a touch screen control apparatus applied to an electronic device having a touch screen in which light sensors are uniformly distributed.

The above device
A sensor selection module for selecting N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body from the optical sensors distributed on the touch screen;
A first control module for controlling the N sampling sensors selected by the sensor selection module and the touch screen.

As an option,
The first control module includes:
A first calculation submodule for calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
A luminance adjustment submodule for adjusting the luminance value of the touch screen having a forward correlation with the luminance value of the ambient light based on the luminance value of the ambient light obtained by the first calculation submodule.

As an option,
The first control module includes:
A second calculation submodule for calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
A first control submodule for controlling the keyboard light to an on state when the luminance value obtained by the second calculation submodule exceeds a predetermined threshold;
A second control submodule for controlling the keyboard light to an off state when the luminance value obtained by the second calculation submodule is equal to or less than a predetermined threshold value;

As an option,
The first calculation sub-module also includes the largest i (i is a positive integer) measurement value and the smallest j (j is a positive value) among the measurement values of the N sampling sensors. Or the average value of each remaining measurement value, and the average value is used as the luminance value of the ambient light,
Or
The second calculation sub-module also includes the largest i (i is a positive integer) measurement value and the smallest j (j is a positive value) among the measurement values of the N sampling sensors. Are deleted, the average value of the remaining measurement values is calculated, and the average value is used as the luminance value of the ambient light.

As an option,
A position specifying module for specifying the shielding position of the operating body based on the position of the optical sensor shielded by the operating body;
And a second control module for controlling the touch screen based on the shielding position specified by the position specifying module.

As an option,
The sensor selection module
An area specifying submodule for acquiring an operation area on which the operating body acts on the touch screen, and specifying a revocation area including the operation area;
Select N sampling sensors from the optical sensors located outside the invalidation area, or wait for selection until N sampling sensors are selected for each of the sampling sensors waiting for selection. When the sampling sensor is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. A sensor selection submodule for selecting the sampling sensor waiting for selection, and
Here, ambient light incident on the optical sensor in the invalidation area is shielded by the operating body.

Optionally, the sensor selection submodule is
When the optical sensors are arrayed on the touch screen, the optical sensors that are closest to the sampling sensor waiting for selection in the row direction or the column direction and are located outside the invalidation area are arranged. A first selection sub-module for selecting to obtain the alternative sampling sensor,
Or
When selecting a sampling sensor along a predetermined direction on the first line, a second line that is parallel to the first line and does not intersect with the invalidation area is specified, and the sampling line is selected on the second line. An optical sensor corresponding to a sampling sensor waiting for selection is obtained to obtain the alternative sampling sensor, or an optical sensor located on the first line along the predetermined direction other than the invalidation area. A second selection sub-module for selecting and obtaining the alternative sampling sensor;

  According to a third aspect of an embodiment of the present invention, a touch screen control device is provided.

The above device
A touch screen with light sensors uniformly distributed;
A processor;
A memory for storing instructions executable by the processor,
The processor
From the optical sensors distributed on the touch screen, select N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body,
The touch screen is controlled using the N sampling sensors.
According to a fourth aspect of the embodiment of the present invention, a program is provided, and the program is executed by a processor to realize the touch screen control method described above.
According to a fifth aspect of the embodiment of the present invention, a recording medium is provided, and the program is recorded on the recording medium.

  The beneficial effects of the configuration provided by the embodiments of the present invention are as follows.

  By selecting N sampling sensors that are not shielded by the operating body from the optical sensors distributed on the touch screen, and controlling the touch screen using the N sampling sensors, The brightness value of the ambient light can be calculated based on these N accurate measurement values, and the touch screen can be controlled based on the brightness value. In this way, since one light sensor installed in a small hall is likely to be blocked, the brightness value of the measured ambient light becomes inaccurate, solving the problem affecting the control of the touch screen, The effect of improving the accuracy of screen control is obtained.

  It should be understood that the foregoing general description and the following detailed description are merely exemplary and do not limit the invention.

The drawings are hereby incorporated into the specification and constitute a part of this specification and illustrate an embodiment consistent with the present invention. Together with the specification, the drawings are used to explain the principles of the invention.
FIG. 1 is a flowchart illustrating a touch screen control method according to an exemplary embodiment. FIG. 2A is a flowchart illustrating a touch screen control method according to another exemplary embodiment. FIG. 2B is a distribution schematic diagram of an optical sensor according to another exemplary embodiment. FIG. 2C is a schematic diagram illustrating a revocation area of a first case according to another exemplary embodiment. FIG. 2D is a schematic diagram illustrating a revocation area of a second case according to another exemplary embodiment. FIG. 2E is a schematic diagram illustrating a revocation area of a third case according to another exemplary embodiment. FIG. 2F is a schematic diagram illustrating a first line according to another exemplary embodiment. FIG. 2G is a schematic diagram illustrating a first line and a second line according to another exemplary embodiment. FIG. 3 is a block diagram illustrating a touch screen controller according to an exemplary embodiment. FIG. 4 is a block diagram illustrating a touch screen controller according to an exemplary embodiment. FIG. 5 is a block diagram illustrating an apparatus used for touch screen control according to an exemplary embodiment.

  An exemplary embodiment will now be described in detail. Examples in the description are shown in the drawings. In the following description, the same reference numerals in different drawings refer to the same or similar elements unless otherwise described when the drawings are described. The implementation methods described in the following illustrative examples are not representative of all implementation methods consistent with the present invention. On the contrary, they are merely examples of apparatus and methods consistent with certain aspects of the present invention as described in detail in the appended claims.

  FIG. 1 is a flowchart illustrating a touch screen control method according to an exemplary embodiment. The touch screen control method is applied to an electronic device having a touch screen. Optical sensors are uniformly distributed on the touch screen. As shown in FIG. 1, the touch screen control method includes the following steps.

  In step 101, N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body are selected from the optical sensors distributed on the touch screen.

  In step 102, the touch screen is controlled using N sampling sensors.

  As described above, according to the touch screen control method provided by the present invention, N sampling sensors that are not shielded by the operating body are selected from the optical sensors distributed on the touch screen, and the N By controlling the touch screen using the sampling sensors, the brightness value of the ambient light is calculated based on the N accurate measurement values, and the touch screen is controlled based on the brightness value. be able to. In this way, since one light sensor installed in a small hall is likely to be blocked, the brightness value of the measured ambient light becomes inaccurate, solving the problem affecting the control of the touch screen, The effect of improving the accuracy of screen control is obtained.

  FIG. 2A is a flowchart illustrating a touch screen control method according to another exemplary embodiment. The touch screen control method is applied to an electronic device having a touch screen. Optical sensors are uniformly distributed on the touch screen. As shown in FIG. 2A, the touch screen control method includes the following steps.

  In step 201, an operation area on which the operating body acts on the touch screen is acquired, and a revocation area including the operation area is specified. Here, ambient light incident on a photosensor in the revocation area is Is shielded by.

  In this embodiment, the photosensors are uniformly distributed on the touch screen. Referring to the distribution schematic diagram of the optical sensor shown in FIG. 2B, the circle indicates the optical sensor 210, the uppermost rectangle indicates the control chip 220, the line indicates the conductor 230, and each rectangle distributed below indicates the pixel. A color color block 240 is shown. Here, each optical sensor 210 is connected to the control chip 220 through the conducting wire 230.

  Since a large number of photosensors are distributed on the touch screen, more resources are consumed when ambient light is measured using all the photosensors. For this reason, the electronic device may select N sampling sensors among them and measure the luminance value of the ambient light by the sampling sensor. When the electronic device triggers a touch operation on the touch screen by the user in the process of selecting N sampling sensors, the electronic device can detect the touch operation that acts on the touch screen. Here, the operating body may be a user's finger, the user's palm, or another part of the user, and the present embodiment is not limited thereto.

  A plurality of touch units are uniformly distributed on the touch screen. When the touch operation is applied to the touch screen, the capacitance value of the touch unit that is covered by the touch operation is changed. The electronic device identifies an area formed from the touch unit whose capacitance value has been changed as an operation area for the touch operation. In this embodiment, the touch unit whose electric capacitance value has been changed is called a contact portion.

  Since the operating body and the operating area come into contact with each other, the ambient light to be incident on these optical sensors is shielded by the operating body for the optical sensors located in the operating area. For this reason, since the measurement value measured by these optical sensors is not the actual luminance value of the ambient light, it affects the accuracy of the luminance value of the ambient light to be measured. When the light source is positioned above the electronic device, the operating body irradiated with the ambient light forms a shadow on the touch screen. Since the measured value measured by the optical sensor located in the shadow is not the actual luminance value of the ambient light, it affects the accuracy of the luminance value of the ambient light to be measured. For this reason, when measuring the luminance value of ambient light, it is necessary to exclude the measured values of these optical sensors.

  In this embodiment, a region formed from the optical sensor in which the incident ambient light is shielded by the operating body is defined as an invalidation region. The revocation area includes an operation area and a shadow area. The operation body may be a finger or a palm, but shadows formed when the finger and the palm are operated are different from each other. For this reason, in this embodiment, the shadows formed when the finger and the palm are operated are different from each other, so that different shadow algorithms are adopted and the same shadow algorithm is adopted to form the fingers and the palm. In order to calculate the revocation area, the problem of inaccurate specification of the revocation area was solved, and the accuracy of specifying the revocation area was improved. Hereinafter, a method for specifying the revocation area will be described.

  In the first specifying method, a first predetermined length larger than a distance from an arbitrary position in the operation area to the center position of the operation area is acquired, and based on the first predetermined length with the center position as a center. To specify the revocation area including the operation area.

  Here, the first predetermined length needs to be larger than the distance from an arbitrary position in the operation area to the center position of the operation area. In this way, all the positions in the operation area are all located in the invalidation area. In general, the first predetermined length may be set larger, for example, 20 mm. Alternatively, other values may be set, and in the present embodiment, the value is not limited to the value of the first predetermined length.

  In this embodiment, the shape of the revocation area may be set. For example, the shape of the revocation area may be a circle, an ellipse, a regular polygon, an irregular shape, or the like. If the shape of the revocation area is a circle, the first predetermined length is the length of the radius, and if the shape of the revocation area is a regular polygon, the first predetermined length is half the length of the diagonal line. is there.

  Referring to the schematic diagram of the revocation area of the first case shown in FIG. 2C, in the drawing on the left side of FIG. 2C, the user's finger acts on the touch screen as the operating body. In the drawing on the right side of FIG. 2C, the area a is a finger operation area, and the black circle in the area a is the center position of the operation area. The region b can be obtained with the center position as the center and the first predetermined length as the radius. Region b is the revocation area.

  In the second identification method, the operation strength of each contact portion where the touch operation acts in the operation region is acquired, the direction in which the operation strength is reduced is determined as the long axis direction, Creates an ellipse stale region. The major axis direction is a direction from the first position to the second position on the major axis, and the distance from the first position to the operation area is smaller than the distance from the second position to the operation area. The ellipse revocation area includes an operation area.

Since the shadow of the finger is elongated, an ellipse revocation area may be set. When realizing, the shadow area may be specified based on the direction of the finger, and the revocation area may be specified based on the shadow area and the operation area. Here, the direction of the finger may be detected based on the operation strength.
Referring to the schematic diagram of the revocation area of the second case shown in FIG. 2D, in the drawing on the left side of FIG. 2D, the user's finger acts on the touch screen as the operating body. In the drawing on the right side of FIG. 2D, a region a is a finger operation region, and the direction in which the operation strength is reduced based on the direction of the finger is the fastest in the direction D1 and the second position. This is the direction of the straight line where the position D2 is located. After specifying the major axis direction, an elliptical revocation area b is generated.

  In the third identification method, the second predetermined length is obtained and obtained by extending the second predetermined length along a preset direction from the contact portion on the boundary of the operation region as a starting point. The area surrounded by the contact portions is specified as the revocation area including the operation area. Here, the preset direction is a direction from the center position of the operation region to the contact portion.

  Here, the second predetermined length may be set smaller. For example, the second predetermined length is smaller than the first predetermined length. If the first predetermined length is 10 mm, the second predetermined length may be set to 20 mm. Of course, the second predetermined length may be set to another value, and in the present embodiment, the second predetermined length is not limited to the value of the second predetermined length.

  Referring to the schematic diagram of the revocation area of the third case shown in FIG. 2E, in the drawing on the left side of FIG. 2E, the palm of the user acts on the touch screen as the operating body. In the drawing on the right side of FIG. 2E, the area a is an operation area of the palm, and the black circle in the area a is the center position of the operation area. For each contact portion on the boundary of the operation region, the direction from the center position to the contact portion is specified as a predetermined direction corresponding to the contact portion, and the first direction from the contact portion along the predetermined direction is specified. A region b that is extended by a predetermined length d of 2 and is surrounded by contact portions obtained by extending each contact portion is specified as a revocation region.

  In step 202, N sampling sensors (N is a natural number equal to or greater than 2) are selected from the optical sensors located outside the revocation area, or N is selected for the sampling sensors waiting for selection. If a sampling sensor waiting for selection is located in the invalidation area until one sampling sensor is selected, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection expires. If it is located outside the area, a sampling sensor waiting for selection is selected.

  The present embodiment provides two selection methods for selecting N sampling sensors based on the revocation area. Hereinafter, each of these two types of selection methods will be described.

  In the first selection method, the electronic device first excludes the optical sensors shielded by the operating body based on the expired area, and then selects N sampling sensors from the remaining optical sensors. At this time, the electronic device may randomly select N sampling sensors from the remaining optical sensors, or first specify the distribution line of the sampling sensor and then N N along the distribution line. The sampling sensor may be selected, and this embodiment is not limited to the selection method.

  In the second selection method, the electronic device first specifies a sampling sensor waiting for selection according to a predetermined rule, and is specified that the sampling sensor waiting for selection is shielded by the operating body based on the invalidation area. Then, an alternative sampling sensor corresponding to the sampling sensor waiting for selection is selected. Here, the ambient light incident on the alternative sampling sensor is not shielded by the operating body.

  When actually implemented, the electronic device first specifies a sampling sensor waiting for selection according to a predetermined rule. Here, when the photosensors are array-distributed on the touch screen, the predetermined rule specifies q (q is a positive integer) and identifies one row, and p (p is positive) in one row. It may be a rule that specifies a sampling sensor waiting for selection by leaving an integer number of optical sensors. Since the specified sampling sensors waiting to be selected are uniformly distributed on the touch screen, the measured brightness value of the ambient light becomes the most accurate. For example, when 100 * 100 photosensors are distributed on an electronic device, assuming that N is 100, the first, eleventh, twenty-first to nineteenth photosensors in the first row are waiting for selection. The first, eleventh, twenty-first to ninety-first photosensors in the eleventh row are identified as sampling sensors waiting for selection, and the first, eleventh, and twenty-first in the 91st row. ... The 91st optical sensor is specified as a sampling sensor waiting for selection, and 100 sampling sensors waiting for selection are selected.

  Alternatively, the predetermined rule is that a sampling sensor distribution line is specified on the touch screen, the line is the first line, and N selection waiting sampling sensors are uniformly specified on the first line. It may be. Here, the first line may be a straight line, a broken line, or a curved line, and the present embodiment is not limited thereto. Referring to the schematic diagram of the first line shown in FIG. 2F, the first line p is a horizontal straight line, the first line q is a vertical straight line, and the first line m is a diagonal line. And the first line n is a curve.

  In this embodiment, after one sampling sensor waiting for selection is specified, it is necessary to detect whether or not the sampling sensor waiting for selection is located in the invalidation area. If the sampling sensor waiting for selection is located in the revocation area, an alternative sampling sensor is acquired and the alternative sampling sensor is finally selected as the sampling sensor, and the sampling sensor waiting for selection is the revocation area. If it is located other than the above, it is not necessary to acquire an alternative sampling sensor, and the sampling sensor waiting for selection is selected and finally selected.

  This embodiment provides two switching methods for switching a sampling sensor waiting for selection to an alternative sampling sensor. Hereinafter, each of the two switching methods will be described.

  First, in the switching method, when the optical sensors are distributed in an array on the touch screen, the distance from the sampling sensor waiting for selection is the closest in the row direction or the column direction, and the position is other than the invalidation area. Select an optical sensor to obtain an alternative sampling sensor.

  Here, the electronic device selects an optical sensor that is closest to the sampling sensor waiting for selection in the row direction and is located outside the invalidation area, and identifies the optical sensor as an alternative sampling sensor. Alternatively, an optical sensor that is closest to the selection waiting sampling sensor in the column direction and is located outside the invalidation area is selected, and the optical sensor is specified as an alternative sampling sensor. It is also possible to select an optical sensor that is closest to the sampling sensor waiting for selection in the row direction and is located outside the invalidation region, and that is closest to the sampling sensor waiting for selection in the column direction. A sampling sensor that is close and is located outside the stale area and that is waiting to be selected from these two optical sensors. The closest optical sensor distance may be specified as an alternative sampling sensor.

  For example, if the sampling sensor waiting for selection is the twentieth photosensor in the fifteenth row and the eighteenth to twenty-fifth photosensors in the fifteenth row are located in the invalidation region, the seventeenth photosensor in the fifteenth row May be specified as an alternative sampling sensor.

  In the second switching method, when N sampling sensors are selected along a predetermined direction on the first line, the second line that is parallel to the first line and does not intersect with the invalidation area is specified. An optical sensor corresponding to the sampling sensor waiting for selection in the second line is obtained to obtain an alternative sampling sensor, or an optical sensor located in a predetermined direction other than the expired area along the predetermined line To obtain an alternative sampling sensor.

  Referring to the schematic diagram of the first line and the second line shown in FIG. 2G, when the first line g is a horizontal line and the revocation area is an area of one circle, the second line h is parallel to the first line g and does not intersect with each other in the circular region.

  For example, the 15th row is selected as the first line, the sampling sensor waiting for selection is the 20th photosensor on the first line, and within the 18-25th photosensor expiration region on the first line. Once located, the second line that does not intersect the stale area is identified as the 20th row and the 20th sensor on the 2nd line is identified as an alternative sampling sensor, or the 26th line on the 1st line is identified. May be specified as alternative sampling sensors.

  After selecting the alternative sampling sensor, the electronic device subsequently specifies the next one of the sampling sensors waiting for selection according to a predetermined rule until selection of the remaining sampling sensors is completed.

  When the first line and the second line are present, the electronic device may identify the next one sampling sensor waiting for selection in the first line, or the next one sampling waiting for selection in the second line. The sensor may be specified, and the present embodiment is not limited thereto. In the process of selecting an optical sensor, the probability that the operating body touches again on a single line is lower, so the time consumed to acquire an alternative sampling sensor again can be reduced and the selection efficiency can be improved. obtain.

  Optionally, the method provided by this example further comprises the following steps:

1) Displacement from the alternative sampling sensor to the sampling sensor waiting for selection, and selecting the next sampling sensor waiting for selection along the predetermined direction in the first line, starting from the sampling sensor waiting for selection Or
2) The next sampling sensor waiting for selection is specified along the predetermined direction in the second line, starting from the alternative sampling sensor.

  Assuming that nine optical sensors exist between two sampling sensors waiting for selection, the next sampling sensor waiting for selection is the twentieth optical sensor. Alternatively, the 30th photosensor on one line may be specified, or the next sampling sensor waiting for selection may be specified as the 30th photosensor on the second line.

  In step 203, the touch screen is controlled using N sampling sensors.

  After obtaining the N sampling sensors, the electronic device measures the brightness value of the ambient light by the N sampling sensors, and controls the touch screen based on the brightness value of the ambient light. Hereinafter, an example in which the luminance value of the touch screen and the keyboard light are controlled based on the luminance value of the ambient light will be described.

  In the first application case, the step of controlling the touch screen using the N sampling sensors includes the step of calculating the brightness value of the ambient light based on the measurement values of the N sampling sensors, and the brightness of the ambient light. Adjusting the luminance value of the touch screen based on the value, wherein the luminance value of the touch screen and the luminance value of the ambient light have a forward correlation.

  Here, the step of calculating the luminance value of the ambient light based on the measured values of the N sampling sensors is the largest i (i is a positive integer) among the measured values of the N sampling sensors. Deleting the measured values and the smallest j (j is a positive integer), calculating the average value of the remaining measured values, and calculating the average value as the luminance value of the ambient light And the step of.

  Since the light source is natural light in many cases and the ambient light generated by natural light is uniformly incident on each sampling sensor, the measurement values of each sampling sensor are the same or approach. If the measured value measured by one sampling sensor is too high or too low, there may be a problem with the sampling sensor, and the measured value at this time is also an inaccurate value. For this reason, when measuring the luminance value of the ambient light, it is necessary to exclude the measurement values of these sampling sensors.

  In this example, first, the measurement values are screened, and the largest i measurement values and the smallest j measurement values are deleted, and then the average value of the remaining measurement values is calculated. , Increase the accuracy of the calculated brightness value.

  Here, when deleting the largest i measurement values and the smallest j measurement values, each measurement value is sorted in ascending order to obtain a list of measurement values. The previous i measurement values and the subsequent j measurement values may be deleted.

  In order to simplify the calculation process, an example will be described in which the touch screen includes five sampling sensors. When actually realized, the number of photosensors >> 5. The measurement values measured by the five sampling sensors are N1, N2, N3, N4, and N5, N3> N5> N2> N4> N1, and i = j = 1. The luminance value of the ambient light = (N2 + N4 + N5) / 3.

  In this example, by adjusting the brightness value of the touch screen based on the brightness value of the ambient light, if the brightness value of the ambient light is larger, the brightness value of the touch screen is increased and the brightness value of the ambient light is more If it is smaller, the brightness value of the touch screen may be decreased. In this way, the user's visual acuity is protected by adapting the luminance value of the touch screen to the luminance value of the ambient light. Here, the technique for adjusting the brightness value of the touch screen based on the brightness value of the ambient light is already very mature and will not be described here.

  In the second application case, the step of controlling the touch screen using the N sampling sensors includes the step of calculating the brightness value of the ambient light based on the measurement values of the N sampling sensors, and the brightness value is predetermined. If the threshold value is exceeded, the keyboard light is controlled to be in an on state, and if the luminance value is not more than a predetermined threshold value, the keyboard light is controlled to be in an off state.

  Here, since the process of calculating the luminance value of the ambient light based on the measurement values of the N sampling sensors has been described above, it will not be repeated here.

  The keyboard light provides illumination when the user inputs using the keyboard. If the brightness value of the ambient light is smaller, the user cannot see the keyboard and cannot operate the keyboard. At this time, the keyboard light is controlled to be turned on to improve the accuracy of the operation, and if the ambient light brightness value is larger, the keyboard light can be controlled to be turned off to save the electric power of the electronic device. .

  The electronic device controls the touch screen based on the brightness value of the ambient light, and may control the touch screen using the position of the light sensor shielded by the operating body, which is provided in this embodiment. It is necessary to explain that the method further includes the steps of identifying the shielding position of the operating body based on the position of the optical sensor shielded by the operating body and controlling the touch screen based on the shielding position.

  Since the distribution position of each optical sensor on the touch screen is known, the electronic device specifies the shielded optical sensor, and also specifies the shielding position of the manipulation tool, and operates the manipulation tool based on the shielding position. The position may be specified. In one application case, the electronic device can further improve the accuracy of specifying the operation region by verifying whether the operation region obtained by measuring the capacitance value is correct based on the operation position. . In another application case, the electronic device may directly control the touch screen based on the operation area. For example, the touch screen is controlled to respond to an operation on the operation area. In the present embodiment, the method for controlling the touch screen is not limited.

  As described above, according to the touch screen control method provided by the present invention, N sampling sensors that are not shielded by the operating body are selected from the optical sensors distributed on the touch screen, and the N By controlling the touch screen using the sampling sensors, the brightness value of the ambient light is calculated based on the N accurate measurement values, and the touch screen is controlled based on the brightness value. be able to. In this way, since one light sensor installed in a small hall is likely to be blocked, the brightness value of the measured ambient light becomes inaccurate, solving the problem affecting the control of the touch screen, The effect of improving the accuracy of screen control was obtained.

  Also, an alternative sampling sensor is obtained by selecting a photosensor that is closest to the sampling sensor waiting for selection in the row direction or the column direction and is located outside the invalidation region. Here, since the specified sampling sensors are uniformly distributed on the touch screen, the measured brightness value of the ambient light becomes more accurate.

  FIG. 3 is a block diagram illustrating a touch screen controller according to an exemplary embodiment. The touch screen control device is applied to an electronic device having a touch screen. Optical sensors are uniformly distributed on the touch screen. As shown in FIG. 3, the touch screen control device includes a sensor selection module 310 and a first control module 320.

  The sensor selection module 310 selects N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body from the optical sensors distributed on the touch screen.

  The first control module 320 controls the sensor touch screen using the N samplings selected by the sensor selection module 310.

  As described above, according to the touch screen control device provided by the present invention, the N sampling sensors not shielded by the operating body are selected from the optical sensors distributed on the touch screen, and the N By controlling the touch screen using the sampling sensors, the brightness value of the ambient light is calculated based on the N accurate measurement values, and the touch screen is controlled based on the brightness value. be able to. In this way, since one light sensor installed in a small hall is likely to be blocked, the brightness value of the measured ambient light becomes inaccurate, solving the problem affecting the control of the touch screen, The effect of improving the accuracy of screen control was obtained.

  FIG. 4 is a block diagram illustrating a touch screen controller according to an exemplary embodiment. The touch screen control device is applied to an electronic device having a touch screen. Optical sensors are uniformly distributed on the touch screen. As shown in FIG. 4, the touch screen control device includes a sensor selection module 410 and a first control module 420.

  The sensor selection module 410 selects N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body from the optical sensors distributed on the touch screen.

  The first control module 420 controls the touch screen using the N sampling sensors selected by the sensor selection module 410.

  As an option, the first control module 420 includes a first calculation sub-module 421 and a brightness adjustment sub-module 422.

  The first calculation submodule 421 calculates the luminance value of the ambient light based on the measurement values of the N sampling sensors.

  The brightness adjustment submodule 422 adjusts the brightness value of the touch screen having a forward correlation with the brightness value of the ambient light based on the brightness value of the ambient light obtained by the first calculation submodule 421.

  As an option, the first control module 420 includes a second calculation submodule 423, a first control submodule 424, and a second control submodule 425.

  The second calculation submodule 423 calculates the brightness value of the ambient light based on the measurement values of the N sampling sensors.

  The first control submodule 424 controls the keyboard light to be turned on when the luminance value obtained by the second calculation submodule 423 exceeds a predetermined threshold.

  The second control submodule 425 controls the keyboard light to be turned off when the luminance value obtained by the second calculation submodule 423 is equal to or less than a predetermined threshold value.

As an option, the first calculation sub-module 421 may also include the largest i (i is a positive integer) measured value and the smallest j (of N sampling sensor measured values). j is a positive integer) and the average value of each remaining measurement value is calculated and the average value is the luminance value of the ambient light, or
The second calculation sub-module 423 also includes the largest i (i is a positive integer) measurement value and the smallest j (j is a positive value) among the measurement values of the N sampling sensors. Are deleted, the average value of the remaining measurement values is calculated, and the average value is set as the luminance value of the ambient light.

  As an option, the apparatus provided by this embodiment further includes a position determination module 430 and a second control module 440.

The position specifying module 430 specifies the shielding position of the operating body based on the position of the optical sensor shielded by the operating body;
The second control module 440 controls the touch screen based on the shielding position specified by the position specifying module 430.

  As an option, the sensor selection module 410 includes a region identification submodule 411 and a sensor selection submodule 412.

  The area specifying submodule 411 acquires an operation area on which the operating body acts on the touch screen, specifies an invalid area including the operation area, and the ambient light incident on the photosensor in the invalid area is It is shielded by the operating body.

  The sensor selection sub-module 412 selects N sampling sensors from among the optical sensors located outside the expired area, or selects N sampling sensors for the sampling sensors waiting for selection. Until the sampling sensor waiting for selection is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. Select a sampling sensor waiting for selection.

  As an option, the sensor selection submodule 412 includes a first selection submodule 4121 or a second selection submodule 4122.

In the first selection sub-module 4121, when the optical sensors are arrayed on the touch screen, the sampling sensors waiting for selection are closest in the row direction or the column direction, and other than the invalidation area. Select a light sensor located to obtain an alternative sampling sensor, or
When the second selection sub-module 4122 selects a sampling sensor along a predetermined direction on the first line, the second selection sub-module 4122 specifies a second line that is parallel to the first line and does not intersect with the invalidation area, An optical sensor corresponding to the sampling sensor awaiting selection on the second line is obtained to obtain an alternative sampling sensor, or an optical sensor located on the first line other than the expired area along a predetermined direction To obtain an alternative sampling sensor.

  As described above, according to the touch screen control device provided by the present invention, the N sampling sensors not shielded by the operating body are selected from the optical sensors distributed on the touch screen, and the N By controlling the touch screen using the sampling sensors, the brightness value of the ambient light is calculated based on the N accurate measurement values, and the touch screen is controlled based on the brightness value. be able to. In this way, since one light sensor installed in a small hall is likely to be blocked, the brightness value of the measured ambient light becomes inaccurate, solving the problem affecting the control of the touch screen, The effect of improving the accuracy of screen control is obtained.

  Also, an alternative sampling sensor is obtained by selecting a photosensor that is closest to the sampling sensor waiting for selection in the row direction or the column direction and is located outside the invalidation region. Here, since the specified sampling sensors are uniformly distributed on the touch screen, the measured brightness value of the ambient light becomes more accurate.

  Since the specific mode of operation performed by each module of the apparatus of the above embodiment has already been described in detail in the embodiment relating to the method, it will not be described in detail here.

  An exemplary embodiment of the present invention provides a touch screen control apparatus that implements the touch screen control method provided by the present invention.

The touch screen control device includes:
A touch screen with light sensors uniformly distributed;
A processor;
A memory for storing instructions executable by the processor,
The processor
From the optical sensors distributed on the touch screen, select N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body,
The touch screen is controlled using the N sampling sensors.

  FIG. 5 is a block diagram of an apparatus 500 used for touch screen control according to an exemplary embodiment. For example, the device 500 may be a mobile phone, a computer, a digital broadcasting terminal, a message transmission / reception device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

  Referring to FIG. 5, apparatus 500 includes process assembly 502, memory 504, power supply assembly 506, multimedia assembly 508, audio assembly 510, input / output (I / O) interface 512, sensor assembly 514, and communication assembly 516. One or more assemblies may be included.

  The process assembly 502 generally controls the overall operation of the apparatus 500 and controls operations associated with, for example, display, telephone calls, data communications, camera operations, and recording operations. Process assembly 502 may include one or more processors 520 that execute instructions to implement all or some of the steps of the above method. Note that the process assembly 502 may include one or more modules that facilitate interaction between the process assembly 502 and other assemblies. For example, the process assembly 502 may include multimedia modules that facilitate interaction between the multimedia assembly 508 and the process assembly 502.

  The memory 504 is configured to support the operation of the device 500 by storing each type of data. Examples of these data include any application program or method instructions that operate on device 500, contact data, phone book data, messages, images, videos, and the like. The memory 504 may be realized by any kind of volatile memory, non-volatile memory storage device, or a combination thereof. For example, SRAM (Static Random Access Memory) EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM (EPROM) An Erasable Programmable Read Only Memory (PROM), a Programmable ROM (PROM), a ROM (Read Only Member), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

  The power supply assembly 506 provides power to the various assemblies of the device 500. The power supply assembly 506 may include a power management system, one or more power supplies, and other assemblies associated with generating, managing, and allocating power for the device 500.

  The multimedia assembly 508 includes a screen that provides an output interface between the device 500 and the user. In the above embodiment, the screen may include a liquid crystal monitor (LCD) and a touch panel (TP). When the screen includes the touch panel, the screen can realize the touch screen and can receive an input signal from the user. The touch panel includes one or more touch sensors, and can detect touch, swipe, and gesture on the touch panel. The touch sensor can detect not only the boundary of the touch or swipe operation but also the duration and pressure related to the touch or swipe operation. In the above embodiment, the multimedia assembly 508 includes one front camera and / or a rear camera. When the apparatus 500 is in an operation mode such as a shooting mode or a video mode, the front camera and / or the rear camera can receive multimedia data from the outside. Each of the front camera and the rear camera may have one fixed type optical lens system, or one having a variable focal length and an optical zoom function.

  Audio assembly 510 may be configured to input and output audio signals. For example, the audio assembly 510 includes one microphone (MIC), and the device 500 may receive an external audio signal when the device 500 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. it can. The received audio signal is further stored in the memory 504 or transmitted via the communication assembly 516. In the above embodiment, the audio assembly 510 further includes one speaker for outputting an audio signal.

  The I / O interface 512 provides an interface between the process assembly 502 and the peripheral interface module, and the peripheral interface module may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, an activation button, and a locking button.

  The sensor assembly 514 includes one or more sensors for providing the device 500 with an assessment for various conditions. For example, the sensor assembly 514 can detect the relative positioning of an assembly such as the ON / OFF state of the device 500, the display and keypad of the device 500. Also, for example, the sensor assembly 514 may change the position of the device 500 or one assembly of the device 500, whether the user is in contact with the device 500, the orientation of the device 500, or acceleration / deceleration, Can detect changes in temperature. Sensor assembly 514 may include a proximity sensor for detecting the presence of nearby objects in the absence of any physical contact. The sensor assembly 514 may include a light sensor such as a CMOS or CCD image sensor for application in imaging applications. In the above embodiment, the sensor assembly 514 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, and a temperature sensor.

  The communication assembly 516 provides a wired or convenient form of communication between the device 500 and other devices. The device 500 may be connected to a wireless network based on a communication standard, such as WiFi®, 2G, 3G, or a combination thereof. In one exemplary embodiment, the communication assembly 516 receives a broadcast signal from an external broadcast management system or information related to the broadcast over a broadcast channel. In one exemplary embodiment, the communication assembly 516 further includes a near field communication (NFC) module to enable near field communication. For example, the NFC module can be realized based on RFID (Radio Frequency IDentification) technology, IrDA (Infrared Data Association) technology, UWB (Ultra Wide Band) technology, BT (Bluetooth (registered trademark)) technology, and other technologies.

  In an exemplary embodiment, the apparatus 500 includes one or more ASICs (Application Specific Integrated Circuits), DSPs (Digital Signal Processors), DSPDs (Digital Signal Processing Devices), PLDs (Progressive Integral Circuits). Gate Array), controller, microcontroller, microprocessor, or other electronic component that performs the above method.

  In an exemplary embodiment, a computer-readable non-transitory recording medium containing instructions, for example, a memory 504 containing instructions, is provided, and the instructions are executed by the processor 520 of the apparatus 500 to execute the method. Realize. For example, the computer-readable non-transitory recording medium is ROM, RAM, CD-ROM, magnetic tape, floppy (registered trademark) disk, optical data storage device, or the like.

  One skilled in the art can readily devise other embodiments of the invention after reviewing the specification and carrying out the invention. This application is intended to cover any variations, uses, or adaptive modifications of the present invention which, in accordance with the general principles of the present invention, and The present invention includes publicly known knowledge or ordinary technical means not disclosed. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being set forth in the following claims.

  It is to be understood that the present invention is not limited to the precise construction described above and shown in the drawings, and that various substitutions and modifications can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

  This application claims priority based on a Chinese patent application whose application number is CN2015104933149.2 and whose application date is August 12, 2015, and incorporates the entire contents of the Chinese patent application.

Claims (14)

A touch screen control method applied to an electronic device having a touch screen in which light sensors are uniformly distributed,
Selecting N (N is a natural number of 2 or more) sampling sensors that are not shielded by the operating body from the light sensors distributed on the touch screen;
Utilizing said N sampling sensors look including the step of controlling the touch screen,
The step of selecting N sampling sensors not shielded by the operating body is as follows:
Obtaining an operation area on which the operating body acts on the touch screen, and specifying a revocation area including the operation area;
Select N sampling sensors from the optical sensors located outside the invalidation area, or wait for selection until N sampling sensors are selected for each of the sampling sensors waiting for selection. When the sampling sensor is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. Selecting a sampling sensor waiting for selection,
Here, the ambient light incident on the optical sensor in the invalidation area is shielded by the operation body . The step of controlling the touch screen using the N sampling sensors includes:
Calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
The touch screen control method according to claim 1, further comprising: adjusting a brightness value of the touch screen having a forward correlation with the brightness value of the ambient light based on the brightness value of the ambient light. . The step of calculating the luminance value of the ambient light based on the measurement values of the N sampling sensors is as follows:
Among the measurement values of the N sampling sensors, the largest i (i is a positive integer) measurement value and the smallest j (j is a positive integer) measurement value. A step to delete,
The touch screen control method according to claim 2, further comprising: calculating an average value of each remaining measurement value and setting the average value as a luminance value of the ambient light. Identifying the shielding position of the operating body based on the position of the optical sensor shielded by the operating body;
The touch screen control method according to claim 1, further comprising: controlling the touch screen based on the shielding position. The step of switching the sampling sensor waiting for selection to an alternative sampling sensor located outside the invalidation area is as follows:
When the optical sensors are arrayed on the touch screen, the optical sensors that are closest to the sampling sensor waiting for selection in the row direction or the column direction and are located outside the invalidation area are arranged. Selecting to obtain the alternative sampling sensor;
Or
When selecting a sampling sensor along a predetermined direction on the first line, a second line that is parallel to the first line and does not intersect with the invalidation area is specified, and the sampling line is selected on the second line. An optical sensor corresponding to a sampling sensor waiting for selection is obtained to obtain the alternative sampling sensor, or an optical sensor located on the first line along the predetermined direction other than the invalidation area. The touch screen control method according to claim 1 , further comprising: selecting to obtain the alternative sampling sensor. A touch screen control device applied to an electronic device having a touch screen in which light sensors are uniformly distributed,
A sensor selection module for selecting N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body from the optical sensors distributed on the touch screen;
A first control module for controlling the N sampling sensors selected by the sensor selection module and the touch screen ;
The sensor selection module
An area specifying submodule for acquiring an operation area on which the operating body acts on the touch screen, and specifying a revocation area including the operation area;
Select N sampling sensors from the optical sensors located outside the invalidation area, or wait for selection until N sampling sensors are selected for each of the sampling sensors waiting for selection. When the sampling sensor is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. A sensor selection submodule for selecting the sampling sensor waiting for selection, and
Here, ambient light incident on the light sensor in the revocation region, the touch screen control device according to claim Rukoto shielded on the operation member. The first control module includes:
A first calculation submodule for calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
A luminance adjustment submodule for adjusting the luminance value of the touch screen having a forward correlation with the luminance value of the ambient light based on the luminance value of the ambient light obtained by the first calculation submodule. The touch screen control device according to claim 6 . The first control module includes:
A second calculation submodule for calculating a luminance value of ambient light based on the measurement values of the N sampling sensors;
A first control submodule for controlling the keyboard light to an on state when the luminance value obtained by the second calculation submodule exceeds a predetermined threshold;
When the above-mentioned luminance value by the second calculating submodule was obtained is below a predetermined threshold value, according to claim 7, characterized in that it comprises a second control sub-module for controlling the keyboard lights off state Touch screen control device. The first calculation sub-module also includes the largest i (i is a positive integer) measurement value and the smallest j (j is a positive value) among the measurement values of the N sampling sensors. Or the average value of each remaining measurement value, and the average value is used as the luminance value of the ambient light,
Or
The second calculation sub-module also includes the largest i (i is a positive integer) measurement value and the smallest j (j is a positive value) among the measurement values of the N sampling sensors. Are deleted, the average value of the remaining measurement values is calculated, and the average value is used as the luminance value of the ambient light.
The touch screen control device according to claim 8 . A position specifying module for specifying the shielding position of the operating body based on the position of the optical sensor shielded by the operating body;
The touch screen control device according to claim 6 , further comprising: a second control module for controlling the touch screen based on the shielding position specified by the position specifying module. The sensor selection submodule
When the optical sensors are arrayed on the touch screen, the optical sensors that are closest to the sampling sensor waiting for selection in the row direction or the column direction and are located outside the invalidation area are arranged. A first selection sub-module for selecting to obtain the alternative sampling sensor,
Or
When selecting a sampling sensor along a predetermined direction on the first line, a second line that is parallel to the first line and does not intersect with the invalidation area is specified, and the sampling line is selected on the second line. An optical sensor corresponding to a sampling sensor waiting for selection is obtained to obtain the alternative sampling sensor, or an optical sensor located on the first line along the predetermined direction other than the invalidation area. The touch screen control device according to claim 6 , further comprising: a second selection sub-module for selecting and obtaining the alternative sampling sensor. A touch screen with light sensors uniformly distributed;
A processor;
A memory for storing instructions executable by the processor,
The processor
From the optical sensors distributed on the touch screen, select N sampling sensors (N is a natural number of 2 or more) that are not shielded by the operating body,
The touch screen is controlled using the N sampling sensors ,
The step of selecting N sampling sensors not shielded by the operating body is as follows:
Acquiring an operation area on which the operating body acts on the touch screen, and specifying a revocation area including the operation area;
Select N sampling sensors from the optical sensors located outside the invalidation area, or wait for selection until N sampling sensors are selected for each of the sampling sensors waiting for selection. When the sampling sensor is located in the invalidation area, the sampling sensor waiting for selection is switched to an alternative sampling sensor located outside the invalidation area, and the sampling sensor waiting for selection is located outside the invalidation area. Selecting the sampling sensor waiting for selection,
Here, the ambient light incident on the optical sensor in the invalidation area is shielded by the operation body . By being executed by the processor, program characterized by implementing a touch screen control method as claimed in any one of claims 5. A recording medium on which the program according to claim 13 is recorded.